Bismuth Trichloride Equilibrium

 

Hazards: 

Bismuth Trichloride is toxic.  Avoid exposure.

Conc. HCl is corrosive and toxic.  Use care.

Chemicals and Solutions: 

0.1 BiCl3

Concentrated HCl

Distilled water

Materials: 

Large hydrometer with black tape

250 mL graduated cylinder

25 mL graduated cylinger

Stirring rod

Procedure: 

Add 25 mL BiCl3into hydrometer.

Add 150 mL of water (white ppt forms)

Add 15 mL conc. HCl (dissolves ppt).

BiCl3 (aq) + H2O ↔ BiOCl(s) + HCl

Hint: 

(This demo shows effectively the same principle as the cobalt equilibrium demo.  The cobalt equilibrium demo shows principle with color rather than precipitate.)

 

 

 

 

 

To schedule a demonstration, please send an email to the demonstration lab.

 

Contact:

Eric Camp

Lecture Demonstration Technician

Bagley Hall 171

(206) 543-1606

ericcamp@uw.edu

 

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